Automation for Homeassistant which does not write to the EEPROM on Solax.

[Vaszago]

I would like to write an automation in Homeassistant where I can fully charge my Solax Ultra storage from the grid at maximum power during the 2 cheapest hours (awattar).
I have read a lot but can't figure out how to do it. I am afraid of using the wrong commands and writing unnecessary information to the EEprom.
An automation for discharging the battery in self-use mode during the most expensive 4-5 hours would also be great.

Perhaps someone can give me precise instructions on how to do this.
Thanks